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31LV2E400 – LEVEL CONTROL 220-230-240/380-400-415V
Lovato Electric 31LV2E400 is a conductive liquid level control relay for automatic filling, draining and level monitoring applications with rated supply voltages of 220-230-240 V AC and 380-400-415 V AC.
£151.99
Why Choose the Lovato Electric 31LV2E400 Level Control Relay?
The Lovato Electric 31LV2E400 is a conductive liquid level control relay designed for automatic monitoring and control of electrically conductive liquids in tanks, reservoirs, wells and similar installations. It provides a practical solution for applications such as filling, draining and liquid level supervision using external level probes.
The relay is designed for multi-voltage AC control systems, with rated supply options of 220–230–240 V AC and 380–400–415 V AC. This makes the 31LV2E400 suitable for a wide range of industrial and building-services control panels where common mains control voltages are available.
As part of the Lovato Electric 31 Series, the 31LV2E400 uses the electrical conductivity of the monitored liquid to detect its level through connected electrodes. The relay can then switch its output contacts according to the detected level, enabling pumps, valves, alarms or associated control equipment to be operated automatically.
Key Advantages
- Designed for reliable level control of electrically conductive liquids.
- Supports 220–230–240 V AC and 380–400–415 V AC supply voltages.
- Suitable for automatic filling and draining control.
- Uses external electrodes for straightforward liquid level detection.
- Provides relay output contacts for integration with pumps, contactors, valves and alarm circuits.
- Established Lovato Electric 31 Series design for industrial control applications.
Key Features
- Lovato Electric 31LV2E400 liquid level control relay.
- Conductive level sensing principle.
- Multi-voltage AC supply.
- Rated supply options of 220–230–240 V AC.
- Rated supply options of 380–400–415 V AC.
- Designed for use with external level sensing electrodes.
- Suitable for pump and valve control circuits.
- Designed for electrical control-panel installation.
Automatic Conductive Liquid Level Control
The Lovato 31LV2E400 monitors liquid level by detecting electrical conductivity between external electrodes positioned at the required levels. When the conductive liquid reaches or leaves an electrode, the relay detects the resulting change and switches its output according to the control arrangement.
This operating principle allows the 31LV2E400 to automate common level-control functions without relying on mechanically moving float mechanisms. When correctly configured with suitable probes and switching equipment, it can control pumps, valves or contactors to maintain the required liquid level or provide signalling when predetermined levels are reached.
Typical Applications
- Automatic tank filling systems.
- Tank and reservoir emptying systems.
- Water level monitoring and pump control.
- Well and storage tank installations.
- Industrial process liquid level supervision.
- Building-services and industrial control panels.
Technical Specifications
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| Supply Voltage | 230 V AC | |
|---|---|---|
| Coil / Supply Voltage | 230–240 V AC | |
| Voltage | 415 V | |
| Sensing Principle | Level (conductive) | |
| Manufacturer | Lovato Electric | |
| Series | 31 | |
| Model | 31LV2E400 | |
| Manufacturer part number | 31LV2E400 | |
| Product type | Liquid level control relay | |
| Monitoring principle | Conductive liquid level sensing | |
| Rated supply voltage | 220–230–240 V AC / 380–400–415 V AC | |
| Supply type | AC | |
| Application | Filling, draining and liquid level monitoring | |
| Level detection | External conductive electrodes | |
| Installation | Electrical control panel | |
| Suitable medium | Electrically conductive liquids | |
| HS Code | 85389091 |
Frequently Asked Questions
What is the Lovato 31LV2E400 used for?
The Lovato 31LV2E400 is a conductive liquid level control relay used to monitor and control liquid levels in tanks, reservoirs, wells and similar installations.
What supply voltage does the Lovato 31LV2E400 use?
The 31LV2E400 supports rated AC supply voltages of 220–230–240 V AC and 380–400–415 V AC.
How does the Lovato 31LV2E400 detect liquid level?
It uses conductive sensing electrodes. When an electrically conductive liquid contacts the probes, the relay detects the conductivity and uses this information to determine the liquid level.
Can the Lovato 31LV2E400 be used for automatic pump control?
Yes. The relay can be incorporated into an automatic control circuit for pumps, contactors or valves, allowing filling or draining to be controlled according to the detected liquid level.
Can the 31LV2E400 monitor any type of liquid?
The conductive sensing principle requires an electrically conductive liquid. It is therefore intended for suitable conductive fluids rather than liquids with very high electrical resistance.
Does the Lovato 31LV2E400 require external probes?
Yes. The level control relay operates with external conductive electrodes or probes installed at the required liquid levels.
Trusted by Panel Builders and Automation Professionals
Lovato Electric control and monitoring products are widely used by panel builders, machine manufacturers and automation professionals, with the 31LV2E400 providing a practical solution for automatic conductive liquid level monitoring and pump control applications.
